Spinning box



1943- H. J. MODERMOTT 2,325,786

SPINNING BOX Filed Feb. 27, 1942 INVENTOR. HENR' Y J. MEUERMUTT Patented Aug. 3, 1943 SPINNING BOX Henry J. McDermott, Prospect Park, Pa asllgnor to American Viscose Corporation, Wilmingto Del., a corporation of Delaware Application February 27, 1942, Serial No. 432,707

9 Claims.

This invention relates to a device for removingrayon cakes formed in centrifugal spinning buckets and it particularly constitutes an improvement over the invention disclosed in applicants co-pending United States patent application Serial No. 372,848, filed January 2, 1941, now Patent #2,285,995. Applicant's earlier application generally discloses a spinning box having a removable cake-supporting element disposed in the bottom of the bucket and a tool adapted to be inserted into the bucket and having a means for gripping a cooperating element upon the removable element in the bucket and having a disklike plate which serves to guide the tool durin insertion.

It is an object of this invention to improve the guiding means upon the device to reduce the liability of inflicting damage to the interior of the bucket. A further object is to adapt the cakeremoving device to boxes of diflerent depth. A further object is to provide an improved form of device whereby release of the cake-supporting element is facilitated after removal of the cake from the bucket. A further object is to provide such a device with a means adapted to release the bucket cover from the bucket upon insertion of the device into the bucket. Further objects of the invention will be apparent from the drawing and the description thereof.

In the drawing, illustrative of the invention,

- Figure l is a cross-sectional elevation 'of a spinning bucket with one embodiment of the cake-removing device of this invention applied thereto,

Figure 2 is an elevational view with the spinning box in cross-section showing the application of a modified form of the invention, and

Figure 3 is a plan view, partially cut away showing a detail of the cover of Figure 2.

, In Figure 1, a spinning box 2 with a removable cake-supporting element 3 is shown. The cover 4 and the rubber cover-retaining ring are removed from their respective positions within the upper periphery of the spinning bucket 2. The cake-removing device generally consists of the cylindrical member 4 supporting a plurality of spring hooks 5 within by means of a suitable spider 6 fastened thereto. This spider is provided with a central bore 1 which serves to guide the rod 8 for axial motion within the cylindrical member 4. This rod extends throu h a handle 9 fastened to the top of the device. The rod 8 may be provided with a button or nob ill at its end for facilitating finger manipulation and that portion within the handle 9 is surrounded by a spring II which presses against the collar l2 fastened to the rod 8 and normally holds the rod in its uppermost position (that shown in solid lines in Fig. 1 of the drawing). The lower endof this rod carries a disk-like element It which is free to slide within the cylindrical member 4. This disk-like element is provided with openings I 4 through which the spring hooks may slide. These hooks are so shaped along the portions of their lengths I 5 which are traversed by the disk-like element l4 that upon downward motion of this element the hooks 5 are moved inwardly and upon upward motion, the reverse motion of the hooks takes place.

A slidable collar I6 is provided around the cylindrical member 4 and is fastened to or is integral with an annular plate ll adapted to fit the bucket at the position normally occupied by the cover thereof. The upper and lower ends of the cylindrical member 4 may be provided with suitable outwardly extending flanges I 8 and It to prevent the collar it from sliding ofi either end. If desired, the lower end of the collar may be provided with an annular recess 20 adapted to accommodate the lower flange IS on the cylindrical member 4 when the collar is at its lowermost position thereon.

The removable cake-supporting member 3 may be of any desired shape. As shown in the drawing, it is provided with a nob 2| whose upper surface may be co-planar with the upper surface of the cake-supporting element as a whole. This nob is provided with an undercut neck 22 adapting it to be readily engaged by means of the hooks 5 upon depression of the rod 8 by means of the finger and to be released upon removal of the finger therefrom by the action of the spring ll within the handle of the device. The gripping position of the spring hooks 5 are shown in the dotted lines of Figure 1.

The collar I6 and annular plate ll provide a means for guiding the device through substantially its entire movement during insertion. Besides cooperating with the collar and annular plate as a guide, the cylindrical member serves to prevent the hooks from catching on other objects while outside the bucket and also to protect the cake from the hooks during insertion.

While the collar l6 and annular plate IT attached theretoform a part of the cake-removing device shown in Figure 1, this arrangement may be modified by omitting the annular plate and modifying the collar so that its lower face will seat itself upon the inner periphery of the cover normally used in the spinning box. The coop crating faces of the collar and the cover should be made to engage in a manner such that little side play is permitted therebetween.

Figure 2 shows a modified form of the invention in which the collar and the lower flange (IS in Fig. 1) upon the cylindrical member 4 are omitted to permit the device to be inserted within a cover 23 having a central sleeve 24 integral with or supported by .the cover. Thus the device is adapted to be inserted into the spinning bucket without removal of the cover beforehandyand, by making the sleeve 24 upon the cover of sufficient axial length, such insertion is accompanied with very little play.

Figure 2 shows a further modification which may be applied as well to the type of tool shown in Figure 1. This change is the provision of a collar 25 slidable about the cylindrical body of the device. A plurality of tubular members 26 secured to the upper face of the collar 25 cooperate with pins 21 extending downwardly from the flange at the upper end of the device. About each couple of these cooperating elements, a spring 28 is provided, the ends of .the spring being fastened respectively to the collar and the flange or to the tube and the pin. This arrangement permits the device to be applied to spinning buckets having various depths. The springsupported collar 25 engages the sleeve 24 of the cover 23 and is moved axially against the springs 28 to an extent depending upon the depth of the particular bucket into which it is inserted, the pins 21 and the cooperating tubular members 26 telescoping to permit such motion of the collar. The springs may be selected of any degree of compressibility so that undesirable deformation of the cakes is avoided while attaining a cake package of adequate firmness and rigidityto permit transportation involving considerable rough handling.

The device may be adapted to cooperate with the releasing means for various types of coverlocking devices. For example, the particular cover shown in Figures 2 and 3 may comprise a plurality of elements 29 pivoted at 30 within recesses 3| in the cover 23 and adapted to engage a groove 32 in the inner periphery of the spinning bucket. These elements are in the form of bell-crank levers, one arm 33 of which engages the groove 32 in the bucket and the other 34 is adapted to extend into a slot 35 within the internal sleeve 24 which is rotatable with respect to the cover 23. This type of cover is locked in position upon the bucket by rotating the sleeve 24 counterclockwise within the cover. It may be released by the cake-removing device of this invention by providing the lower face 35 of the collar 25 which engages this sleeve upon insertion of the device into the bucket with a friction fac-' ing, such as cork composition. In that alternative embodiment of Figure 1 in which the annular plate is omitted and the slidable collar i6 is adapted to cooperate with a seat adjacent the inner periphery of the cover or with a central ning bucket for removing a removable bottom therefrom comprising means for gripping said bottom, and a guiding surface on said device extending substantially the entire length of that portion of the device to be inserted into said bucket.

3. A device adapted to be inserted into a spin- -ning bucket for removing a cake-supporting member therefrom comprising means for gripping said member, means for manually operating said gripping means, resilient means for releasingsaid gripping means upon release of said manually operated means and a guiding surface on said device extending substantially the entire length of that portion of the device to be inserted into said bucket.

4. A device adapted to be inserted into-a spinning bucket for removing a cake-supporting member therefrom comprising means for gripsleeve on such a cover as that shown in Figure 2, I

the lower face of the slidable collar it which engages the seat or the sleeve respectively of the cover would be provided with the friction surface.

While preferred embodiments of the invention have been shown, it is to be understood that changes and variations may be made withoutping said member, a guiding surface on said deviceextending substantially the entire length of that portion of the device to be inserted into said bucket, and an element resiliently supported for slidable motion on said guiding surface for adapting said device for insertion into buckets of various depths to reach said member therein.

5. A device adapted to be inserted into a spinning bucket for removing a cake-supporting member therefrom comprising means for gripping said member, a guiding surface on said device extending substantially the entire length of that portion of the device to be inserted into said bucket, and a guiding element slidable with respect to said guiding surface and adapted to be supported in fixed position with respect to said bucket.

. 6. A device adapted to be inserted into a spinning bucket for removing 'a cake-supporting member therefrom comprising means for gripping said member, a cylindrical guiding surface on said device extending substantially the entire length of that portion of the device to be inserted into said bucket, and a collar slidably mounted upon said surface adapted to be supported in fixed position with respect to said bucket.

7. A device adapted to be inserted into a spinning bucket for removing a cake-supporting member therefrom comprising means for gripping said member, a cylindrical guiding surface on said device extending substantially the entire length f that portion of the device to be inserted into said bucket and carrying an element adapted to cooperate with said bucket to center said device with respect thereto.

8. In combination, a spinning bucket cover, cover-locking means mounted on said cover, said means comprising an annular member rotatably supported at the inner periphery of the cover and bucket engaging elements arranged about said member and cooperating therewith so that rotation of said member moves said elements into and out of bucket-engaging position.

9. In combination, a spinning bucket cover, cover-locking means mounted on said cover, said means comprising an annular member rotatably supported at the inner periphery of the cover and bell-crank levers pivoted on said cover with one arm in engagement with said member and the other arranged to be moved into and out of bucket-engaging position upon rotation of said member.

- HENRY J. McDERMO'I'I. 

